package com.huahua.dao;

import com.huahua.pojo.Department;
import org.springframework.stereotype.Repository;

import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

/**
 * @author zzuli_huahua
 * @version 1.0
 * @date 2021/5/27 12:35
 * 部门DAO
 */
@Repository
public class DepartmentDao {

    //模拟数据库中的数据
    private static Map<Integer, Department> departments=null;
    static {
        departments = new HashMap<Integer, Department>(); //创建一个部门表

        departments.put(101,new Department(101,"教学部门"));
        departments.put(102,new Department(102,"市场部门"));
        departments.put(103,new Department(103,"教研部门"));
        departments.put(104,new Department(104,"运营部门"));
        departments.put(105,new Department(105,"后勤部门"));

    }

    //获得所有部门的信息
    public Collection<Department> getDepartment(){
        return departments.values();
    }

    //通过id得到部门的信息
    public Department getDepartmentById(Integer id){
        return departments.get(id);
    }

}
